Amino acid replacement: V670F.
G18659978T
V670F | fu-PA
V670F
Wild type wing phenotype. When in combination with class 0 and II fu alleles individuals have wild type wings, when in combination class I alleles individuals have fu wing phenotype. Loss of Su(fu)+ copies in homozygotes causes a cos wing phenotype, when in combination with class 0 or II fu alleles individuals also have a cos wing phenotype.
To confirm the amino acid replacement is the cause of the mutant phenotype would need the construction of the corresponding transgenic allele.